The numerical calculation of quantum field theory in hadron spectroscopy

被引：1
作者：
Sun, M. Z. [1 ]
Cao, Y. [1 ]
Hu, B. T. [1 ]
Zhang, Y. [1 ]
Chen, X. R. [2 ]
机构：
[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS | 2014年 / 23卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Quantum field theory; QFT plus plus package; numerical calculations; hadron spectroscopy;
D O I：
10.1142/S0218301314600052
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In this paper, we introduced QFT++, a C++ toolkit for numerical calculation of quantum field theory. By comparing the result from QFT++ with the traditional calculation result of the Feynman amplitude p (p) over bar -> m Phi, the validity of QFT++ was demonstrated. Furthermore, the toolkit was optimized in a fixed convention, in which a significant improvement of performance was found. The optimized version will be used in the partial wave analysis (PWA) of hadron spectroscopy, where the computation speed is a crucial bottleneck in most cases.
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页数：8
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